Assembling device of piston ring

Abstract

The invention discloses an assembling device of a piston ring. The assembling device of the piston ring comprises a supporting frame and a piston ring stretching assembly. A V-shaped supporting plate used for supporting a piston of the piston ring to be assembled is arranged above the supporting frame. The piston ring stretching assembly comprises an installation base, a stretching air cylinder and two positioning blocks, wherein the installation base is of a square cavity, the two sides of the bottom end of the square cavity are provided with telescopic piston rods respectively, the stretching air cylinder comprises an air cylinder barrel and two air cylinder sleeves, the air cylinder sleeves are arranged at the two ends of the air cylinder barrel in a sliding fit mode respectively, the air cylinder sleeves are movably installed in the square cavity, the side wall of each air cylinder sleeve is provided with an upper step portion and a lower step portion, the ends of the two piston rods are correspondingly connected to the lower step portions in an abutting mode respectively, the two piston rods can drive the two air cylinder sleeves to be close to each other, the two positioning blocks are detachably arranged on the corresponding upper step portions respectively, the upper surface of each positioning block is provided with at least one fixing groove, hooks are arranged outside the fixing grooves, and the hooks on the two positioning blocks can be clamped into an opening of the piston ring at the same time. The assembling device can assemble multiple kinds of piston rings.

Description

technical field [0001] The invention relates to the field of mechanical tools, in particular to a piston ring assembly device. Background technique [0002] The assembly device of the piston ring is a common device for engine assembly. At present, two methods are generally used for actual assembly: one is to use the taper sleeve to open the piston ring, place the piston on the big end of the taper sleeve and use a numerically controlled stepping motor to axially The method of pushing the piston ring is realistically assembled. However, due to the different axial positions of the piston ring, multiple tapered sleeves and stepping motors need to be imported, which has a complex structure and a large investment; the other is to arrange the cylinder perpendicular to the piston ring surface, and use The semi-circular sleeve (tile) coupling the diameter of the piston and the position of the ring groove pushes the scraper on the arc surface to realize the opening of the piston ring...

AI Technical Summary

Problems solved by technology

[0002] The assembly device of the piston ring is a common device for engine assembly. At present, two methods are generally used for actual assembly: one is to use the taper sleeve to open the piston ring, place the piston on the big end of the taper sleeve and use a numerically controlled stepping motor to axially The method of pushing the piston ring is realistically assembled. However, due to the different axial positions of the piston ring, multiple tapered sleeves and stepping motors need to be imported, which has a complex structure and a large investment; the other is to arrange the cylinder perpendicular to the piston ring surface, and use The semi-circular sleeve (tile) coupling the diameter of the piston and the position of the ring groove pushes the scraper on the arc surface to realize the opening of the piston ring, and then inserts some kind of piston into the opened piston ring to complete the assembly task. However, this device can only be assembled Piston ring of a piston with single function

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